On Monday Miss King gave Room 14 some balloons and then we used them to show her an example of pressure. Miss King said to Room 14 "We have to blow up our balloons." We were huffing and puffing trying to blow them up.
This is just like how the magma heats up inside the volcano. The pressure means that there can be smoke and ash coming out of the volcano and it goes up to the clouds.
Click here to see the movie of what we got up to.